[deliverable/binutils-gdb.git] / bfd / elf32-target.h

/* Target definitions for 32-bit ELF
   Copyright 1993 Free Software Foundation, Inc.

This file is part of BFD, the Binary File Descriptor library.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

/* This structure contains everything that BFD knows about a target.
   It includes things like its byte order, name, what routines to call
   to do various operations, etc.  Every BFD points to a target structure
   with its "xvec" member.

   There are two such structures here:  one for big-endian machines and
   one for little-endian machines.   */

/* Archives are generic or unimplemented.  */
#ifndef bfd_elf32_slurp_armap
#define bfd_elf32_slurp_armap		bfd_slurp_coff_armap
#endif
#define bfd_elf32_slurp_extended_name_table	_bfd_slurp_extended_name_table
#define bfd_elf32_truncate_arname		bfd_dont_truncate_arname
#define bfd_elf32_openr_next_archived_file	bfd_generic_openr_next_archived_file
#define bfd_elf32_generic_stat_arch_elt	bfd_generic_stat_arch_elt
#ifndef bfd_elf32_write_armap
#define	bfd_elf32_write_armap		coff_write_armap
#endif

/* Ordinary section reading and writing */
#define bfd_elf32_get_section_contents	bfd_generic_get_section_contents
#define	bfd_elf32_close_and_cleanup		bfd_generic_close_and_cleanup

#define bfd_elf32_bfd_debug_info_start	bfd_void
#define bfd_elf32_bfd_debug_info_end	bfd_void
#define bfd_elf32_bfd_debug_info_accumulate	(PROTO(void,(*),(bfd*, struct sec *))) bfd_void
#define bfd_elf32_bfd_get_relocated_section_contents \
 bfd_generic_get_relocated_section_contents
#define bfd_elf32_bfd_relax_section bfd_generic_relax_section
#ifndef bfd_elf32_bfd_seclet_link
#define bfd_elf32_bfd_seclet_link bfd_generic_seclet_link
#endif
#define bfd_elf32_bfd_make_debug_symbol \
  ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)

#ifndef elf_info_to_howto_rel
#define elf_info_to_howto_rel 0
#endif

#ifndef ELF_MAXPAGESIZE
#define ELF_MAXPAGESIZE 1
#endif

#ifndef elf_backend_sym_is_global
#define elf_backend_sym_is_global	0
#endif
#ifndef elf_backend_object_p
#define elf_backend_object_p		0
#endif
#ifndef elf_backend_symbol_processing
#define elf_backend_symbol_processing	0
#endif
#ifndef elf_backend_symbol_table_processing
#define elf_backend_symbol_table_processing	0
#endif
#ifndef elf_backend_section_processing
#define elf_backend_section_processing	0
#endif
#ifndef elf_backend_section_from_shdr
#define elf_backend_section_from_shdr	0
#endif
#ifndef elf_backend_fake_sections
#define elf_backend_fake_sections	0
#endif
#ifndef elf_backend_section_from_bfd_section
#define elf_backend_section_from_bfd_section	0
#endif
#ifndef elf_backend_final_write_processing
#define elf_backend_final_write_processing	0
#endif
#ifndef elf_backend_ecoff_debug_swap
#define elf_backend_ecoff_debug_swap	0
#endif

static CONST struct elf_backend_data elf32_bed =
{
#ifdef USE_REL
  0,				/* use_rela_p */
#else
  1,				/* use_rela_p */
#endif
  0,				/* elf_64_p */
  ELF_ARCH,			/* arch */
  ELF_MACHINE_CODE,		/* elf_machine_code */
  ELF_MAXPAGESIZE,		/* maxpagesize */
  elf_info_to_howto,
  elf_info_to_howto_rel,
  elf_backend_sym_is_global,
  elf_backend_object_p,
  elf_backend_symbol_processing,
  elf_backend_symbol_table_processing,
  elf_backend_section_processing,
  elf_backend_section_from_shdr,
  elf_backend_fake_sections,
  elf_backend_section_from_bfd_section,
  elf_backend_final_write_processing,
  elf_backend_ecoff_debug_swap
};

#ifdef TARGET_BIG_SYM
bfd_target TARGET_BIG_SYM =
{
  /* name: identify kind of target */
  TARGET_BIG_NAME,

  /* flavour: general indication about file */
  bfd_target_elf_flavour,

  /* byteorder_big_p: data is big endian */
  true,

  /* header_byteorder_big_p: header is also big endian */
  true,

  /* object_flags: mask of all file flags */
  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
   DYNAMIC | WP_TEXT),
  
  /* section_flags: mask of all section flags */
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
   SEC_CODE | SEC_DATA | SEC_DEBUGGING),

   /* leading_symbol_char: is the first char of a user symbol
      predictable, and if so what is it */
   0,

  /* ar_pad_char: pad character for filenames within an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and/or os and should be independently tunable */
  '/',

  /* ar_max_namelen: maximum number of characters in an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and should be independently tunable.  This value is
     a WAG (wild a** guess) */
  15,

  /* align_power_min: minimum alignment restriction for any section
     FIXME:  this value may be target machine dependent */
  3,

  /* Routines to byte-swap various sized integers from the data sections */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
    bfd_getb16, bfd_getb_signed_16, bfd_putb16,

  /* Routines to byte-swap various sized integers from the file headers */
  bfd_getb64, bfd_getb_signed_64, bfd_putb64,
    bfd_getb32, bfd_getb_signed_32, bfd_putb32,
    bfd_getb16, bfd_getb_signed_16, bfd_putb16,

  /* bfd_check_format: check the format of a file being read */
  { _bfd_dummy_target,		/* unknown format */
    bfd_elf32_object_p,		/* assembler/linker output (object file) */
    bfd_generic_archive_p,	/* an archive */
    bfd_elf32_core_file_p	/* a core file */
  },

  /* bfd_set_format: set the format of a file being written */
  { bfd_false,
    bfd_elf_mkobject,
    _bfd_generic_mkarchive,
    bfd_false
  },

  /* bfd_write_contents: write cached information into a file being written */
  { bfd_false,
    bfd_elf32_write_object_contents,
    _bfd_write_archive_contents,
    bfd_false
  },

  /* Initialize a jump table with the standard macro.  All names start with
     "elf" */
  JUMP_TABLE(bfd_elf32),

  /* backend_data: */
  (PTR) &elf32_bed,
};
#endif

#ifdef TARGET_LITTLE_SYM
bfd_target TARGET_LITTLE_SYM =
{
  /* name: identify kind of target */
  TARGET_LITTLE_NAME,

  /* flavour: general indication about file */
  bfd_target_elf_flavour,

  /* byteorder_big_p: data is big endian */
  false,		/* Nope -- this one's little endian */

  /* header_byteorder_big_p: header is also big endian */
  false,		/* Nope -- this one's little endian */

  /* object_flags: mask of all file flags */
  (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
   DYNAMIC | WP_TEXT),
  
  /* section_flags: mask of all section flags */
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
   SEC_CODE | SEC_DATA | SEC_DEBUGGING),

   /* leading_symbol_char: is the first char of a user symbol
      predictable, and if so what is it */
   0,

  /* ar_pad_char: pad character for filenames within an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and/or os and should be independently tunable */
  '/',

  /* ar_max_namelen: maximum number of characters in an archive header
     FIXME:  this really has nothing to do with ELF, this is a characteristic
     of the archiver and should be independently tunable.  This value is
     a WAG (wild a** guess) */
  15,

  /* align_power_min: minimum alignment restriction for any section
     FIXME:  this value may be target machine dependent */
  3,

  /* Routines to byte-swap various sized integers from the data sections */
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
    bfd_getl16, bfd_getl_signed_16, bfd_putl16,

  /* Routines to byte-swap various sized integers from the file headers */
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
    bfd_getl32, bfd_getl_signed_32, bfd_putl32,
    bfd_getl16, bfd_getl_signed_16, bfd_putl16,

  /* bfd_check_format: check the format of a file being read */
  { _bfd_dummy_target,		/* unknown format */
    bfd_elf32_object_p,		/* assembler/linker output (object file) */
    bfd_generic_archive_p,	/* an archive */
    bfd_elf32_core_file_p	/* a core file */
  },

  /* bfd_set_format: set the format of a file being written */
  { bfd_false,
    bfd_elf_mkobject,
    _bfd_generic_mkarchive,
    bfd_false
  },

  /* bfd_write_contents: write cached information into a file being written */
  { bfd_false,
    bfd_elf32_write_object_contents,
    _bfd_write_archive_contents,
    bfd_false
  },

  /* Initialize a jump table with the standard macro.  All names start with
     "elf" */
  JUMP_TABLE(bfd_elf32),

  /* backend_data: */
  (PTR) &elf32_bed,
};
#endif
Commit	Line	Data
81187b54 KR	1	/* Target definitions for 32-bit ELF
	2	Copyright 1993 Free Software Foundation, Inc.
	3
	4	This file is part of BFD, the Binary File Descriptor library.
	5
	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2 of the License, or
	9	(at your option) any later version.
	10
	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the Free Software
	18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	19
	20	/* This structure contains everything that BFD knows about a target.
	21	It includes things like its byte order, name, what routines to call
	22	to do various operations, etc. Every BFD points to a target structure
	23	with its "xvec" member.
	24
	25	There are two such structures here: one for big-endian machines and
	26	one for little-endian machines. */
	27
	28	/* Archives are generic or unimplemented. */
9942e684 KR	29	#ifndef bfd_elf32_slurp_armap
9942e684 KR	30	#define bfd_elf32_slurp_armap bfd_slurp_coff_armap
ae06054e	31	#endif
9942e684 KR	32	#define bfd_elf32_slurp_extended_name_table _bfd_slurp_extended_name_table
	33	#define bfd_elf32_truncate_arname bfd_dont_truncate_arname
	34	#define bfd_elf32_openr_next_archived_file bfd_generic_openr_next_archived_file
	35	#define bfd_elf32_generic_stat_arch_elt bfd_generic_stat_arch_elt
	36	#ifndef bfd_elf32_write_armap
	37	#define bfd_elf32_write_armap coff_write_armap
ae06054e	38	#endif
81187b54 KR	39
81187b54 KR	40	/* Ordinary section reading and writing */
9942e684 KR	41	#define bfd_elf32_get_section_contents bfd_generic_get_section_contents
	42	#define bfd_elf32_close_and_cleanup bfd_generic_close_and_cleanup
	43
	44	#define bfd_elf32_bfd_debug_info_start bfd_void
	45	#define bfd_elf32_bfd_debug_info_end bfd_void
	46	#define bfd_elf32_bfd_debug_info_accumulate (PROTO(void,(),(bfd, struct sec *))) bfd_void
	47	#define bfd_elf32_bfd_get_relocated_section_contents \
81187b54	48	bfd_generic_get_relocated_section_contents
9942e684	49	#define bfd_elf32_bfd_relax_section bfd_generic_relax_section
632f2cc7	50	#ifndef bfd_elf32_bfd_seclet_link
9942e684	51	#define bfd_elf32_bfd_seclet_link bfd_generic_seclet_link
632f2cc7	52	#endif
9942e684	53	#define bfd_elf32_bfd_make_debug_symbol \
81187b54 KR	54	((asymbol () PARAMS ((bfd , void , unsigned long))) bfd_nullvoidptr)
81187b54 KR	55
b3024965 KR	56	#ifndef elf_info_to_howto_rel
	57	#define elf_info_to_howto_rel 0
	58	#endif
	59
	60	#ifndef ELF_MAXPAGESIZE
	61	#define ELF_MAXPAGESIZE 1
	62	#endif
	63
643e9fc7 ILT	64	#ifndef elf_backend_sym_is_global
	65	#define elf_backend_sym_is_global 0
	66	#endif
a5ccdad1	67	#ifndef elf_backend_object_p
643e9fc7	68	#define elf_backend_object_p 0
a5ccdad1	69	#endif
e2a422b8	70	#ifndef elf_backend_symbol_processing
643e9fc7	71	#define elf_backend_symbol_processing 0
e2a422b8 KR	72	#endif
e2a422b8 KR	73	#ifndef elf_backend_symbol_table_processing
643e9fc7	74	#define elf_backend_symbol_table_processing 0
e2a422b8 KR	75	#endif
e2a422b8 KR	76	#ifndef elf_backend_section_processing
643e9fc7	77	#define elf_backend_section_processing 0
e2a422b8 KR	78	#endif
e2a422b8 KR	79	#ifndef elf_backend_section_from_shdr
643e9fc7	80	#define elf_backend_section_from_shdr 0
e2a422b8 KR	81	#endif
e2a422b8 KR	82	#ifndef elf_backend_fake_sections
643e9fc7	83	#define elf_backend_fake_sections 0
e2a422b8 KR	84	#endif
e2a422b8 KR	85	#ifndef elf_backend_section_from_bfd_section
643e9fc7 ILT	86	#define elf_backend_section_from_bfd_section 0
	87	#endif
	88	#ifndef elf_backend_final_write_processing
	89	#define elf_backend_final_write_processing 0
e2a422b8	90	#endif
95469b02	91	#ifndef elf_backend_ecoff_debug_swap
643e9fc7	92	#define elf_backend_ecoff_debug_swap 0
95469b02	93	#endif
e2a422b8	94
268f94ac	95	static CONST struct elf_backend_data elf32_bed =
81187b54	96	{
7050286d KR	97	#ifdef USE_REL
	98	0, /* use_rela_p */
	99	#else
	100	1, /* use_rela_p */
	101	#endif
	102	0, /* elf_64_p */
	103	ELF_ARCH, /* arch */
a5ccdad1	104	ELF_MACHINE_CODE, /* elf_machine_code */
95469b02	105	ELF_MAXPAGESIZE, /* maxpagesize */
643e9fc7 ILT	106	elf_info_to_howto,
	107	elf_info_to_howto_rel,
	108	elf_backend_sym_is_global,
	109	elf_backend_object_p,
	110	elf_backend_symbol_processing,
	111	elf_backend_symbol_table_processing,
	112	elf_backend_section_processing,
	113	elf_backend_section_from_shdr,
	114	elf_backend_fake_sections,
	115	elf_backend_section_from_bfd_section,
	116	elf_backend_final_write_processing,
	117	elf_backend_ecoff_debug_swap
81187b54 KR	118	};
	119
	120	#ifdef TARGET_BIG_SYM
	121	bfd_target TARGET_BIG_SYM =
	122	{
	123	/* name: identify kind of target */
	124	TARGET_BIG_NAME,
	125
	126	/* flavour: general indication about file */
	127	bfd_target_elf_flavour,
	128
	129	/* byteorder_big_p: data is big endian */
	130	true,
	131
	132	/* header_byteorder_big_p: header is also big endian */
	133	true,
	134
	135	/* object_flags: mask of all file flags */
	136	(HAS_RELOC \| EXEC_P \| HAS_LINENO \| HAS_DEBUG \| HAS_SYMS \| HAS_LOCALS \|
	137	DYNAMIC \| WP_TEXT),
	138
	139	/* section_flags: mask of all section flags */
	140	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC \| SEC_READONLY \|
d6e5f950	141	SEC_CODE \| SEC_DATA \| SEC_DEBUGGING),
81187b54 KR	142
	143	/* leading_symbol_char: is the first char of a user symbol
	144	predictable, and if so what is it */
	145	0,
	146
	147	/* ar_pad_char: pad character for filenames within an archive header
	148	FIXME: this really has nothing to do with ELF, this is a characteristic
	149	of the archiver and/or os and should be independently tunable */
	150	'/',
	151
	152	/* ar_max_namelen: maximum number of characters in an archive header
	153	FIXME: this really has nothing to do with ELF, this is a characteristic
	154	of the archiver and should be independently tunable. This value is
	155	a WAG (wild a** guess) */
	156	15,
	157
	158	/* align_power_min: minimum alignment restriction for any section
	159	FIXME: this value may be target machine dependent */
	160	3,
	161
	162	/* Routines to byte-swap various sized integers from the data sections */
23f44e6f ILT	163	bfd_getb64, bfd_getb_signed_64, bfd_putb64,
	164	bfd_getb32, bfd_getb_signed_32, bfd_putb32,
	165	bfd_getb16, bfd_getb_signed_16, bfd_putb16,
81187b54 KR	166
81187b54 KR	167	/* Routines to byte-swap various sized integers from the file headers */
23f44e6f ILT	168	bfd_getb64, bfd_getb_signed_64, bfd_putb64,
	169	bfd_getb32, bfd_getb_signed_32, bfd_putb32,
	170	bfd_getb16, bfd_getb_signed_16, bfd_putb16,
81187b54 KR	171
	172	/* bfd_check_format: check the format of a file being read */
	173	{ _bfd_dummy_target, /* unknown format */
9942e684	174	bfd_elf32_object_p, /* assembler/linker output (object file) */
81187b54	175	bfd_generic_archive_p, /* an archive */
9942e684	176	bfd_elf32_core_file_p /* a core file */
81187b54 KR	177	},
	178
	179	/* bfd_set_format: set the format of a file being written */
	180	{ bfd_false,
998ce1e0	181	bfd_elf_mkobject,
81187b54 KR	182	_bfd_generic_mkarchive,
	183	bfd_false
	184	},
	185
	186	/* bfd_write_contents: write cached information into a file being written */
	187	{ bfd_false,
9942e684	188	bfd_elf32_write_object_contents,
81187b54 KR	189	_bfd_write_archive_contents,
	190	bfd_false
	191	},
	192
	193	/* Initialize a jump table with the standard macro. All names start with
	194	"elf" */
9942e684	195	JUMP_TABLE(bfd_elf32),
81187b54 KR	196
81187b54 KR	197	/* backend_data: */
9942e684	198	(PTR) &elf32_bed,
81187b54 KR	199	};
	200	#endif
	201
	202	#ifdef TARGET_LITTLE_SYM
	203	bfd_target TARGET_LITTLE_SYM =
	204	{
	205	/* name: identify kind of target */
	206	TARGET_LITTLE_NAME,
	207
	208	/* flavour: general indication about file */
	209	bfd_target_elf_flavour,
	210
	211	/* byteorder_big_p: data is big endian */
	212	false, /* Nope -- this one's little endian */
	213
	214	/* header_byteorder_big_p: header is also big endian */
	215	false, /* Nope -- this one's little endian */
	216
	217	/* object_flags: mask of all file flags */
	218	(HAS_RELOC \| EXEC_P \| HAS_LINENO \| HAS_DEBUG \| HAS_SYMS \| HAS_LOCALS \|
	219	DYNAMIC \| WP_TEXT),
	220
	221	/* section_flags: mask of all section flags */
	222	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC \| SEC_READONLY \|
d6e5f950	223	SEC_CODE \| SEC_DATA \| SEC_DEBUGGING),
81187b54 KR	224
	225	/* leading_symbol_char: is the first char of a user symbol
	226	predictable, and if so what is it */
	227	0,
	228
	229	/* ar_pad_char: pad character for filenames within an archive header
	230	FIXME: this really has nothing to do with ELF, this is a characteristic
	231	of the archiver and/or os and should be independently tunable */
	232	'/',
	233
	234	/* ar_max_namelen: maximum number of characters in an archive header
	235	FIXME: this really has nothing to do with ELF, this is a characteristic
	236	of the archiver and should be independently tunable. This value is
	237	a WAG (wild a** guess) */
	238	15,
	239
	240	/* align_power_min: minimum alignment restriction for any section
	241	FIXME: this value may be target machine dependent */
	242	3,
	243
	244	/* Routines to byte-swap various sized integers from the data sections */
23f44e6f ILT	245	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	246	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	247	bfd_getl16, bfd_getl_signed_16, bfd_putl16,
81187b54 KR	248
81187b54 KR	249	/* Routines to byte-swap various sized integers from the file headers */
23f44e6f ILT	250	bfd_getl64, bfd_getl_signed_64, bfd_putl64,
	251	bfd_getl32, bfd_getl_signed_32, bfd_putl32,
	252	bfd_getl16, bfd_getl_signed_16, bfd_putl16,
81187b54 KR	253
	254	/* bfd_check_format: check the format of a file being read */
	255	{ _bfd_dummy_target, /* unknown format */
9942e684	256	bfd_elf32_object_p, /* assembler/linker output (object file) */
81187b54	257	bfd_generic_archive_p, /* an archive */
9942e684	258	bfd_elf32_core_file_p /* a core file */
81187b54 KR	259	},
	260
	261	/* bfd_set_format: set the format of a file being written */
	262	{ bfd_false,
998ce1e0	263	bfd_elf_mkobject,
81187b54 KR	264	_bfd_generic_mkarchive,
	265	bfd_false
	266	},
	267
	268	/* bfd_write_contents: write cached information into a file being written */
	269	{ bfd_false,
9942e684	270	bfd_elf32_write_object_contents,
81187b54 KR	271	_bfd_write_archive_contents,
	272	bfd_false
	273	},
	274
	275	/* Initialize a jump table with the standard macro. All names start with
	276	"elf" */
9942e684	277	JUMP_TABLE(bfd_elf32),
81187b54 KR	278
81187b54 KR	279	/* backend_data: */
9942e684	280	(PTR) &elf32_bed,
81187b54 KR	281	};
81187b54 KR	282	#endif